31009920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:574

約数の個数: 128

約数和(自身を含む): 102228480

約数和(自身を除く): 71218560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 310, 320, 372, 384, 465, 480, 496, 521, 620, 640, 744, 930, 960, 992, 1042, 1240, 1488, 1563, 1860, 1920, 1984, 2084, 2480, 2605, 2976, 3126, 3720, 3968, 4168, 4960, 5210, 5952, 6252, 7440, 7815, 8336, 9920, 10420, 11904, 12504, 14880, 15630, 16151, 16672, 19840, 20840, 25008, 29760, 31260, 32302, 33344, 41680, 48453, 50016, 59520, 62520, 64604, 66688, 80755, 83360, 96906, 100032, 125040, 129208, 161510, 166720, 193812, 200064, 242265, 250080, 258416, 323020, 333440, 387624, 484530, 500160, 516832, 646040, 775248, 969060, 1000320, 1033664, 1292080, 1550496, 1938120, 2067328, 2584160, 3100992, 3876240, 5168320, 6201984, 7752480, 10336640, 15504960, 31009920]

約数ペア:

[(1, 31009920), (2, 15504960), (3, 10336640), (4, 7752480), (5, 6201984), (6, 5168320), (8, 3876240), (10, 3100992), (12, 2584160), (15, 2067328), (16, 1938120), (20, 1550496), (24, 1292080), (30, 1033664), (31, 1000320), (32, 969060), (40, 775248), (48, 646040), (60, 516832), (62, 500160), (64, 484530), (80, 387624), (93, 333440), (96, 323020), (120, 258416), (124, 250080), (128, 242265), (155, 200064), (160, 193812), (186, 166720), (192, 161510), (240, 129208), (248, 125040), (310, 100032), (320, 96906), (372, 83360), (384, 80755), (465, 66688), (480, 64604), (496, 62520), (521, 59520), (620, 50016), (640, 48453), (744, 41680), (930, 33344), (960, 32302), (992, 31260), (1042, 29760), (1240, 25008), (1488, 20840), (1563, 19840), (1860, 16672), (1920, 16151), (1984, 15630), (2084, 14880), (2480, 12504), (2605, 11904), (2976, 10420), (3126, 9920), (3720, 8336), (3968, 7815), (4168, 7440), (4960, 6252), (5210, 5952)]